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php Programming Glossary: evaluateHow to evaluate formula passed as string in PHP? http://stackoverflow.com/questions/1015242/how-to-evaluate-formula-passed-as-string-in-php to evaluate formula passed as string in PHP Just trying to figure out the.. pasted it here for you. This class can be used to safely evaluate mathematical expressions. The class can take an expression in.. The class can take an expression in a text string and evaluate it by replacing values of variables and calculating the results..
Reference: Comparing PHP's print and echo http://stackoverflow.com/questions/7094118/reference-comparing-phps-print-and-echo print return a value and echo doesn't Expressions must evaluate to values for example true evaluates to false and abs 5 evaluates.. Expressions must evaluate to values for example true evaluates to false and abs 5 evaluates to 5 . Since print e is also an.. to values for example true evaluates to false and abs 5 evaluates to 5 . Since print e is also an expression it must evaluate..
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